The LBE AR-15 Castle Nut is made of 4140 steel and has a Magnesium Phosphate finish. Made in the USA.
LBE Unlimited Castle Nut, For AR-15, Manganese Phosphate Coated 4140 Steel ARCNUT
LANTAC 5.56 Enhanced Bolt Carrier Group Nickel Boron
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LBE Takedown Pin and Pivot Pin Set
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LBE AR Castle Nut
$5.15
183 in stock
LBE AR Castle Nut
$5.15
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